<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 用户列表 -->
    <el-card>
      <!-- 搜索与添加 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUsersList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUsersList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="5">
          <el-button type="primary" @click="dialogVisible = true"
            >用户添加</el-button
          >
        </el-col>
      </el-row>
      <!-- 表格 -->
      <el-table :data="userlist" stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改用户 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEdictDialog(scope.row.id)"
            ></el-button>
            <!-- 删除用户 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 设置用户 -->
            <el-tooltip
              effect="dark"
              content="角色设置"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户 -->
    <el-dialog
      title="提示"
      :visible.sync="dialogVisible"
      @close="addDialogClosed"
      width="50%"
    >
      <!-- 添加内容 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 确定取消按钮 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog
      title="修改用户"
      :visible.sync="edictDialogVisible"
      @close="edictDialogClosed"
      width="50%"
    >
      <el-form
        :model="edictForm"
        :rules="edictFormRules"
        ref="edictFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="edictForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="edictForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="edictForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="edictDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="edictUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 角色设置 -->
    <el-dialog
      title="角色设置"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <div>
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      dialogVisible: false,
      setRoleDialogVisible: false,
      userInfo: {},
      // 所有角色数据
      rolesList: [],
      // 已选中的角色id
      selectedRoleId: '',
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 2, max: 5, message: '长度在 2 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { min: 11, max: 11, message: '长度为11个字符', trigger: 'blur' }
        ]
      },
      edictDialogVisible: false,
      edictForm: {

      },
      edictFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { min: 11, max: 11, message: '长度为11个字符', trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    this.getUsersList()
  },
  methods: {
    // 获取用户信息列表
    async getUsersList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户数据失败')
      this.userlist = res.data.users
      this.total = res.data.total
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUsersList()
    },
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUsersList()
    },
    async userStateChanged (userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 关闭清空表单内容
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 增加用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功...')
        this.dialogVisible = false
        this.getUsersList()
      })
    },
    async showEdictDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败！')
      this.edictForm = res.data
      this.edictDialogVisible = true
    },
    edictDialogClosed () {
      this.$refs.edictFormRef.resetFields()
    },
    // 修改用户信息
    edictUserInfo () {
      this.$refs.edictFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.edictForm.id, {
          email: this.edictForm.email,
          mobile: this.edictForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新数据失败...')
        }
        this.edictDialogVisible = false
        this.getUsersList()
        this.$message.success('更新数据成功...')
      })
    },
    // 删除用户
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // catch  捕获异常，当用户按取消的时候会抛出错误信息
      if (confirmResult === 'cancel') {
        return this.$message.info('已取消删除...')
      }

      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUsersList()
    },
    // 获取角色列表
    async setRole (userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮更改角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) return this.$message.error('请选中分配的角色！')
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success('更新角色成功!')
      this.getUsersList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>
